<!DOCTYPE html>
<html>
<body>
	<input type="checkbox" checked="checked" onclick="check(this)">
</body>
</html>
<script type="text/javascript">
var url = 'http://zhoubc.youku.com/star_page/uid_UNDU0NjQ=_t_%E7%94%B5%E8%A7%86%E5%89%A7_q_0';
if(url.indexOf('_q_')>-1){
	var reg =/_q_[0-1]/i;
	url = url.replace(reg,'_q_1');
}else{
	url = url+'_q_1';
}
	alert(url);
function check(o){
	if(o.checked){

	}else{
	}
	//alert(o.getAttribute('checked'));
	//alert(o.checked);
}
</script>
